Home / 917,161.40-1,375,281.30-417,961.40

Finding the Fourth Proportional to 917,161.40, 1,375,281.30 and 417,961.40

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Solution

The fourth proportional to 917,161.40, 1,375,281.30 and 417,961.40 is: 626,732.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,161.40 : 1,375,281.30 = 417,961.40 : x
  2. Step 2: Convert to fraction form
    917,161.40/1,375,281.30 = 417,961.40/x
  3. Step 3: Cross multiply
    917,161.40x = 1,375,281.30 × 417,961.40
  4. Step 4: Simplify right side
    917,161.40x = 574,814,497,541.82
  5. Step 5: Solve for x
    x = 574,814,497,541.82/917,161.40
  6. Step 6: Final answer
    x = 626,732.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.